one and keeping my curiosity on the systems and not just the internet, but power and aviation and the large complicated things that we depend on so much. >> "tubes" is the name of the book. andrew blum is the author. this is "communicators" on c- span. >> sometimes he was a cruel boss. he did not know how to apologize. many of his age and class, they're not going to apologize to a young and private secretary. he had a way of turning the tables. his version of an apology would be to say, well, i am a kind man and you are doing a good job today. but the issue was never settled. he always had to get the